Enhanced light-matter coupling effects are striking in II-VI quantum well microresonators, with the normal mode (Rabi) splitting exceeding 10 meV per quantum well at the exciton resonance in ZnSe-based heterostructures. Such a dominating imprint of the mixed exciton-photon modes extends to high electron-hole pair densities, including the regime of vertical cavity laser operation. We present results from gain spectroscopy to show how the composite photon-exciton oscillator supplies optical gain for a laser operating beyond the conventional perturbative regime.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Inorganic Chemistry
- Materials Chemistry